The most common and most likely answer to this crossword clue is the 8 letter word NETWORKS
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Buddy explains!
The straight part
We know that "arrangements for communicating" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case arrangements for communicating = networks.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does NETWORKS mean?
NETWORKS noun- A fabric or structure of fibrous elements attached to each other at regular intervals.
- Any interconnected group or system
- A directory of people maintained for their advancement
- A group of affiliated television stations that broadcast common programs from a parent company.
- Multiple computers and other devices connected together to share information
- To interact socially for the purpose of getting connections or personal advancement.
- To connect two or more computers or other computerized devices.
- To interconnect a group or system.
- To broadcast across an entire network of stations and affiliates at the same time.